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30 results about "Rate independent" patented technology

Compressor control system for a portable ventilator

A method and apparatus for controlling a brushless DC (BLDC) motor over a wide range of angular speeds is presented. Analog magnetic sensors provide continuous signal measurements related to the rotor angular position at a sample rate independent of rotor angular speed. In one embodiment, analog signal measurements are subsequently processed using an arctangent function to obtain the rotor angular position. The arctangent may be computed using arithmetic computation, a small angle approximation, a polynomial evaluation approach, a table lookup approach, or a combination of various methods. In one embodiment, the BLDC rotor is used to drive a Roots blower used as a compressor in a portable mechanical ventilator system.
Owner:VYAIRE MEDICAL 203 INC

Variable-speed motor-generator accessory drive system

An accessory drive system for a motor vehicle is provided including first and second gear sets having first, second, and third members configured to selectively connect vehicle accessories to an engine and motor / generator. The first member of each gear set is continuously interconnected to the other. The second member of each gear set is continuously interconnected to the other. The motor / generator is configured to drive the accessories at a selectable rate independent of engine speed. A first torque transmitting device is operatively connected to the gear sets to allow the motor / generator to re-start the engine and power the accessories while restarting the engine. A second torque transmitting device is operatively connected to the engine's output shaft to allow the motor / generator to power the accessories while the vehicle is off.
Owner:GM GLOBAL TECH OPERATIONS LLC

Method and apparatus for block and rate independent decoding of LDPC codes

Methods and apparatus are provided for block and rate independent decoding of LDPC codes. The disclosed LDPC decoders support multiple code block lengths and code rates, as well as a variable parity check matrix. The disclosed LDPC decoders decode LDPC codes that are based on a parity check matrix having a plurality of sub-matrices, wherein each row and column of the plurality of sub-matrices has a single entry. Each of the sub-matrices has at least one associated Phi-node, wherein each Phi-node comprises a memory device having a plurality of memory elements, wherein one or more of the memory elements may be selectively disabled. The Phi-nodes may be selectively disabled, for example, at run-time. The Phi-node optionally further comprises a multiplexer in order to provide a variable parity check matrix.
Owner:AVAGO TECH WIRELESS IP SINGAPORE PTE

Sampling rate independent speech recognition

A sampling-rate-independent method of automated speech recognition (ASR). Speech energies of a plurality of codebooks generated from training data created at an ASR sampling rate are compared to speech energies in a current frame of acoustic data generated from received audio created at an audio sampling rate below the ASR sampling rate. A codebook is selected from the plurality of codebooks, and has speech energies that correspond to speech energies in the current frame over a spectral range corresponding to the audio sampling rate. Speech energies above the spectral range are copied from the selected codebook and appended to the current frame.
Owner:GENERA MOTORS LLC

Impact attenuator system

An impact attenuator system includes a hyperelastic member that comprises an energy absorbing material which behaves in a rate-independent hyperelastic manner so that its permanent set is minimized and the material can absorb tremendous amounts of impact energy while remaining fully recoverable.
Owner:BATTELLE MEMORIAL INST

Agricultural harvesting machines and front attachments therefor

An agricultural harvesting machine is includes a first gathering element (14) adapted to be driven by a first drive mechanism (161) so as to gather crop and to feed the crop in a direction substantially opposite to a direction of motion of the harvesting machine. A second gathering element (16) is adapted to receive the crop from the first gathering element (14) and is further adapted to be driven so as to transfer the crop in a direction substantially transverse to the direction of motion. Intake elements (20, 21, 26, 27) are adapted to receive the crop from the second gathering element (16). The second gathering element (16) and intake elements (20, 21, 26, 27) are adapted to be driven at related rates. The first gathering element (14) is driveable at a rate independent from a driven rate of the second gathering element (16) and the intake elements (20, 21, 26, 27).
Owner:BLUE LEAF I P INC +1

Light-generating apparatus control system

A control system for a light-generating apparatus can include a control cyclically operating a switching element in series with the circuit including the apparatus's power source and light. Upon actuation of the apparatus's switch within a specified switching interval, the control shifts to a drift mode causing the circuit to automatically pass through consecutive excitation states such that the light passes through successive levels of preferably increasing intensity at a rate independent of the switching interval over an adjustment interval of momentarily indefinite duration. Another switch actuation shifts to set mode, which stops the light at a desired intensity. The drift and set operations are repeatable. An indicator preferably enables the operator to adjust the light's intensity based on the available remaining life of the power source as differently determined for each different intensity. To facilitate interchangeability between differently sized apparatus, the control's housing can include an adjustable spacing element.
Owner:IVERS KEVIN THOMAS

Impact attenuator system

An impact attenuator system includes a hyperelastic member that comprises an energy absorbing material which behaves in a rate-independent hyperelastic manner so that its permanent set is minimized and the material can absorb tremendous amounts of impact energy while remaining fully recoverable.
Owner:BATTELLE MEMORIAL INST

Reduction of Capacitive Touch Sense Electrode Sample Value Change When Electrode Scan Period is Changed

A touch sensitive capacitive keypad system (100) is provided with an analog-to-digital converter, a keypad sensing electrode (114) coupledto measure capacitance voltages using a configurable electrode scan rate, and a controller (120) configured to provide scan-rate independent capacitance voltage measurements from the keypad sensing electrode to the analog-to-digital converter when there is a change in the configurable electrode scan rate by repetitively sampling a capacitance voltage measurements (e.g., 524a-f) from the keypad sensing electrode over a plurality of sequential electrode scan cycles and then discarding a predetermined number of the capacitance voltage measurements (e.g., 524a-b) to generate the scan-rate independent capacitance voltage measurements (e.g., 524c-f) that are provided to the analog-to-digital converter.
Owner:NXP USA INC

Cell management method and apparatus

In a cell management method and apparatus which can prevent a call loss generated in association with an increase of cell usage rate independent of a protection frequency bandwidth, cell usage rates of operating cells (at frequency Fo) are acquired. Narrower nonoperating cells (at frequency Fo) of the operating cell in which the cell usage rate indicates a high-load state are rendered an addition candidate and the operating cell is rendered a deletion candidate. A broader nonoperating cell (at frequency Fo) of the operating cell in which the cell usage rate indicates a low-load state is rendered an addition candidate, and the operating cell and other narrower operating cells belonging to the nonoperating cell are rendered deletion candidate. From among the nonoperating cells that are the addition candidate and the operating cells that are the deletion candidates, a nonoperating cell(s) to be switched over to an operating cell(s) and an operating cell(s) to be switched over to a nonoperating cell(s) is determined.
Owner:FUJITSU LTD

Speech to dtmf generation

A method of speech to DTMF generation involving ASR-enabled and DTMF-controlled communications systems. The ASR-enabled system is used to recognize speech received from the DTMF-controlled telecommunications system using sampling rate independent speech recognition. It then identifies a speech segment contained in the speech received from the DTMF-controlled system that corresponds with at least one keyword associated with user-defined data. Then, the ASR-enabled system transmits at least one DTMF signal to the DTMF-controlled system in response to the identified speech segment. This allows a user of an ASR-enabled system such as a vehicle telematics unit to at least partially automate access to the DTMF-controlled system using the telematics unit, so that voice mailbox numbers, passwords, and the like normally entered via a telephone keypad can be automatically sent to the DTMF-controlled system from the telematics unit without having to be manually input each time by the user.
Owner:GENERA MOTORS LLC

Visual message display device

An alphanumeric and graphic symbol display device in which an LED array is rotated and controlled to project a display onto a translucent surface. The electrical power for the array is provided by way of a rotating contactless transformer independently of the control data for the array which is provided by infrared data transmission through a tubular shaft driven by a DC brushless, three-phase motor to rotate the array at a predetermined rate independent of the electrical power for the array and the control data.
Owner:NEWSCANNER

Thermal lance assembly

ActiveUS20070170625A1Improve burnsReliable burnBlast furnace componentsBlast furnace detailsThermal lanceBurn rate
An improved thermal lance is made of a low carbon steel sheath having an internal bore and a thin cylindrical rod that is roll-formed from low carbon steel sheet. The rod being sized for conforming fit in the bore of the sheath and has a length dimension that is longer than the length of the sheath. The rod is inserted into the bore of the sheath and allowed to move axially within the sheath under propulsion of the pressurized oxygen to allow the rod to be burned at a rate independent of the burn rate of the sheath. A thermal lance assembly using the improved lance also includes a magnet located near the bottom of the lance housing to keep the lance from moving during routine handling and storage.
Owner:HARASYM MICHAEL F

Multi-rate finite impulse response filter

Embodiments include systems and methods for implementing a multi-rate FIR by using rate-dependent bit stuffing on the cursor, while using rate-independent (e.g., full-rate) spacing on the pre- and post-cursor. For example, in the FIR data path, the cursor bit output is generated using bit stuffing, depending on a selected rate mode (e.g., full-rate, half-rate, quarter-rate, eighth-rate, etc.), but the spacing of the pre-cursor, cursor, and post-cursor are maintained at 1 UI apart (i.e., the full-rate spacing) for all rate modes. Such an approach can appreciably reduce complexity of the logic and can appreciably relieve the critical timing path.
Owner:ORACLE INT CORP

Building sample rate independent timing diagrams using digital edge averaging

The invention relates to building sample rate independent timing diagrams using digital edge averaging. A method can include receiving an input signal having multiple signal edges, performing an initial scan of the input signal to identify peaks corresponding to the signal edges, and determining whether each peak is a Uniformly Synchronous (US) edge or a Quasi-Synchronous (QS) edge. The method can also include generating a final waveform and displaying the final waveform on a display device.
Owner:TEKTRONIX INC
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